Nemobub Dog Shock Collar 1000ft Remote Training and 100% Waterproof Rechargeable Shock Collar with Beep Vibration and Electric Dog Collar DogsUPGRADE SINGLE BUTTON: Feature with single button for shock and vibration training modes is easy to operation than traditional dog training collar."+" " " button to contral training level, it's more safety and simple for training your dogs. RUBBER OIL SURFACE: Use rubber oil surface technology on dog shock collar, it is better comfortable to grasp and use, let you enjoy cozy and soft surface in your hands. ADJUSTABLE TRAINING MODES: Different 3 colors